Intel Xeon E5 1681 v3 's Advantages
Released 7 years and 7 months late
Higher specification of memory (2133 vs 2)
Newer PCIe version (3 vs 1)
Higher base frequency (2.9GHz vs 2.8GHz)
More modern manufacturing process (22nm vs 90nm)
Opteron 2220 's Advantages
Lower TDP (95W vs 135W)